30021402 has 16 divisors (see below), whose sum is σ = 60121152. Its totient is φ = 9994080.

The previous prime is 30021377. The next prime is 30021437. The reversal of 30021402 is 20412003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502 + ... + 8142.

It is an arithmetic number, because the mean of its divisors is an integer number (3757572).

Almost surely, 2^30021402 is an apocalyptic number.

30021402 is an abundant number, since it is smaller than the sum of its proper divisors (30099750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30021402 is a wasteful number, since it uses less digits than its factorization.

30021402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30021402 is about 5479.1789530914. The cubic root of 30021402 is about 310.7971230203.

Adding to 30021402 its reverse (20412003), we get a palindrome (50433405).

The spelling of 30021402 in words is "thirty million, twenty-one thousand, four hundred two".